Section 5. System Overview
Telecommunications
The CR1000 accesses data on the card as needed to fill data-collection requests
initiated with the datalogger support software Collect
(p. 509) command. An
alternative, if care is taken, is to collect data in binary form. Binary data are
collected using the datalogger support software File Control | Retrieve
(p. 515)
command. Before collecting data this way, stop the CR1000 program to ensure
data are not written to the card while data are retrieved, or data will be corrupted.
Direct with Adapter to PC
Data transfer is much faster through an adapter than through a
telecommunications link. This speed difference is especially noticeable with large
files.
The format of data files collected with a PC with an adapter is different than the
standard Campbell Scientific data file formats. See section Data-File Format
Examples
(p. 379) for more information. Data files can be converted to a Campbell
Scientific format using CardConvert
(p. 509) software.
5.3.9.5 Data-File Formats in CR1000 Memory
Routine CR1000 operations store data in binary data tables. However, when the
TableFile() instruction is used, data are also stored in one of several formats in
discrete text files in internal or external memory. See Data Storage — On-board
(p. 374)
for more information on the use of the TableFile() instruction.
5.3.9.6 Data Format on Computer
CR1000 data stored on a PC with datalogger support software (p. 654) are formatted
as either ASCII or binary depending on the file type selected in the support
software. Consult the software manual for details on available data-file formats.
5.3.10 Alternate Telecommunications — Overview
Related Topics:
• Alternate Telecommunications — Overview (p. 90)
• Alternate Telecommunications — Details (p. 407)
The CR1000 communicates with external devices to receive programs, send data,
or act in concert with a network. The primary communication protocol is PakBus
(p. 522).
Other telecommunication protocols are supported, including Web API (p.
423),
Modbus (p. 411), and DNP3 (p. 408). Refer to the section Specifications (p. 97) for a
complete list of supported protocols. The appendix Data Retrieval and
Telecommunications — Peripherals Lists
(p. 651) lists peripheral communication
devices available from Campbell Scientific.
Keyboard displays also communicate with the CR1000. See Keyboard Display —
Overview
(p. 83) for more information.
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